Voice actress and artist Okasaki Miho has teamed up with the manga version of Tensei Shitara Slime Datta Ken for a new collaboration video that shows Rimuru Tempest dancing to her latest song. The clip has already ignited a storm of delighted reactions on social media.
About Tensei Shitara Slime Datta Ken
Tensei Shitara Slime Datta Ken — often shortened to TenSura — is an isekai entertainment novel by Fuse, serialized on the web novel platform Shousetsuka ni Narou. The story follows a protagonist reincarnated as a slime in another world, who uses acquired skills and bold thinking to gain allies. The manga adaptation, illustrated by Kawakami Taiki, is also ongoing.
The TV anime launched in October 2018, and the first film opened in November 2022. In 2023, the three-episode Collius no Yume streamed as part of the 10th anniversary project. The second film, Soukai no Namida-hen, hit theaters in February 2026, and the fourth TV anime season (split into five cours) began airing in April.
Rimuru Dances in New Collab
Okasaki Miho, who voices protagonist Rimuru Tempest, has now taken part in a collaboration with the manga edition. She is currently enjoying a busy career: she plays Ichikawa Hinana in The Idolmaster Shiny Colors and performed a live at K Arena Yokohama in April. She also received the Lead Actor Award at the 19th Seiyuu Awards last year.
On September 2 (Wednesday), Okasaki released her third mini album MY ÉTOILE. The song rapappa☆PARTNER! from that album is used in the newly released collaboration video with the manga.
In the video, Rimuru Tempest dances energetically to the tune, including a distinctive “slime dance” where Rimuru forms a ring above the head. The choreography was created by bunkei, known for the Poke Dance and Reze Dance, giving the routine a bright, pop-friendly feel.
Fans Go Wild
On X, the sight of dancing Rimuru drew comments like “This is too good,” “So cute I watched it over and over,” “What is this?! Is this a god?!” “So cute that Diablo might literally die,” “The cuteness that makes Shion and Diablo faint,” “So cute, what is this?” “She’s the Demon Lord, but why is she so adorable?!” “He’s moving!! I want to learn this dance!” and “So cute that I want to become one of her subordinates.”
5th Anniversary Live
Okasaki will perform her 5th anniversary live, “5th ANNIVERSARY LIVE Furoria,” on September 13 (Sunday) at LINE CUBE SHIBUYA in Tokyo. The daytime show is titled “Furoria: Boku no Kodou,” while the evening show is “Furoria: Yakusoku no Oto,” with different setlists for each. General tickets are now on sale, and a more affordable “Kaketsuke Oiwai Ticket” is also available. The event offers fans a chance to see the artist’s five-year journey.
Song and Manga Details
The song rapappa☆PARTNER! was written by Karasawa Miho, composed and arranged by Honda Tomonori (EverNest), with dance choreography by bunkei. The manga’s latest 33rd volume will be released on October 8, 2026, alongside a special edition with a mini clear file.
(C) Fuse, Kawakami Taiki / Kodansha
